Question

Q21 which smallest number should be added to 80 so as to make it a perfect square ?
(a) 2 (b) 3 (c) 1 (d) 4

Answer 1

1 should be the number

Answer 2

Heya,

The smallest number to be added to 80 so as to obtain a perfect square number is 1.

80+1= 81

Square root of 81 = 9

Therefore option c is correct

Hope it helps u..